Volume 6

Issue 03,2013

(8 articles)

Yandong Wang1, Nan Lu1(), Wentao Wang1, Lingxiao Liu1, Lei Feng1, Zhoufang Zeng1, Haibo Li1, Weiqing Xu1, Zijian Wu2, Wei Hu2, Yanqing Lu2, and Lifeng Chi1,3

Excellent surface-enhanced Raman scattering (SERS) performance with high homogeneity (for a single substrate) and reproducibility (for different substrates) has been achieved using Ag pyramidal arrays obtained by using inverted pyramidal Si pits as a template. The close-packed Ag pyramids exhibit a high average enhancement factor of 2.84 × 107 with relative standard deviation lower than 8.78% both across a single substrate and different batches of substrates.
2013, 6(3): 159–166

Hao Wu, Ming Xu, Yongcheng Wang, and Gengfeng Zheng (*)

A novel Co3O4/α-Fe2O3 branched nanowire heterostructure has been hydrothermally grown on Ti substrates, and can serve as lithiumion battery anodes with high Li+ storage capacity and stability.
2013, 6(3): 167–173

Mingyuan Ge1, Jiepeng Rong1, Xin Fang1, Anyi Zhang1, Yunhao Lu2, and Chongwu Zhou1,3 ()

Porous silicon nanoparticles have been produced as a new kind of silicon nanostructure in large quantity in a scalable and cost-efficient way. The porous silicon nanoparticles have been successfully used as high performance lithium-ion battery anodes, with capacity around 1400 mA•h/g and 1000 mA•h/g at current rates of 1 A/g and 2 A/g.
2013, 6(3): 174–181

Jiepeng Rong1,§, Xin Fang1,§, Mingyuan Ge1, Haitian Chen2, Jing Xu1, and Chongwu Zhou2 ()

We report a coaxial silicon/anodic titanium oxide/silicon (Si–ATO–Si) nanotube array structure grown on a titanium substrate demonstrating excellent electrochemical cyclability. This coaxial structure shows a capacity above 1,500 mAh/g after 100 cycles, with less than 0.05% decay per cycle.
2013, 6(3): 182–190

Andres Castellanos-Gomez1 (), Efrén Navarro-Moratalla2, Guillermo Mokry3, Jorge Quereda3, Elena Pinilla-Cienfuegos2, Nicolás Agrat3,4, Herre S. J. van der Zant1, Eugenio Coronado2, Gary A. Steele1, and Gabino Rubio-Bollinger3 ()

Atomically thin crystals of TaSe2 have been fabricated by mechanical exfoliation of bulk crystals. A systematic study of their optical contrast and Raman spectra provide a fast, reliable and non-destructive way to identify these ultrathin two-dimensional crystals. Moreover, the optimal substrate conditions to identify atomically TaSe2 layers have been calculated.
2013, 6(3): 191–199

Yuan Huang1,2,3,§, Jing Wu2,3,§, Xiangfan Xu2,3, Yuda Ho2,3, Guangxin Ni2,3, Qiang Zou1, Gavin Kok Wai Koon2,3, Weijie Zhao2,3,4, A. H. Castro Neto2,3,6, Goki Eda2,3,4, Chengmin Shen1, and Barbaros zyilmaz2,3,5,6 ()

An innovative way of etching MoS2 crystals by using XeF2 gas has been systematically studied, and the etching mechanism is clearly shown.
2013, 6(3): 200–207

Haoming Wei1,2, Yang Wei1 (), Yang Wu1, Liang Liu1, Shoushan Fan1,2, and Kaili Jiang1 ()

O2 plasma has been employed to modify super-aligned carbon nanotube (CNT) arrays. The treatment not only removes the random layer of curved CNTs from the top of the array, but also introduces defects and oxygen-containing functional groups into the CNTs. We can thus produce composite CNT yarns with high tensile strengths up to 2.2 GPa and Young’s moduli of more than 200 GPa.
2013, 6(3): 208–215

Rubén Rozada, Juan I. Paredes (), Silvia Villar-Rodil, Amelia Martínez-Alonso, and Juan M. D. Tascón

For the first time, full restoration of the carbon lattice in reduced graphene oxide sheets assembled into films is demonstrated, based on a carefully designed annealing procedure. The resulting films exhibit electrical conductivities as high as 577,000 S·m–1.
2013, 6(3): 216–233